The dataset contains hydrological, erosion, vegetation, ground cover, and other supplementary information from 272 rainfall simulation experiments conducted on 23 semi-arid rangeland locations in Arizona and Nevada between 2002 and 2013. On 30&thinsp;% of the plots simulations were conducted up to five times during the decade of study. The rainfall was generated using the Walnut Gulch Rainfall Simulator on 2&thinsp;m by 6&thinsp;m plots. Simulation sites included brush and grassland areas with various degree of disturbance by grazing, wildfire, or brush removal. This dataset advances our understanding of basic hydrological and biological processes that drive soil erosion on arid rangelands. It can be used to quantify runoff, infiltration, and erosion rates on a variety of ecological sites in the Southwestern USA. Inclusion of wildfire and brush treatment locations combined with long term observations makes it important for studying vegetation recovery, ecological transitions, and effect of management. It is also a valuable resource for erosion model parameterization and validation. <br><br> The data set available from the National Agricultural Library at <a href="https://data.nal.usda.gov/search/type/dataset" target ="_blank">https://data.nal.usda.gov/search/type/dataset</a> (<a href="https://doi.org/doi:10.15482/USDA.ADC/1358583" target ="_blank">https://doi.org/doi:10.15482/USDA.ADC/1358583</a>).
Polyakov, V., Stone, J., Collins, C. H., Nearing, M. A., Paige, G., Buono, J., & Gomez-Pond, R. L. (2018). Rainfall simulation experiments in the southwestern USA using the Walnut Gulch Rainfall Simulator. Earth System Science Data, 10(1), 19–26. https://doi.org/10.5194/essd-10-19-2018